{"id":"CVE-2026-62779","aliases":["EUVD-2026-56383","GHSA-f437-q7vg-jqrw"],"status":"published","title":"Windows Schannel Elevation of Privilege Vulnerability","description":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00333,"percentile":0.26895,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-08-11T17:04:24Z","modified":"2026-11-10T21:58:09Z","products":[{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62779","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62779"},{"url":"https://github.com/advisories/GHSA-f437-q7vg-jqrw"}],"sources":{"cve":[{"id":"CVE-2026-62779","title":"Windows Schannel Elevation of Privilege Vulnerability","description":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-08-11T17:04:24.658Z","modified":"2026-11-10T21:58:09.358Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T22:48:51.483784Z"}],"euvd":[{"id":"EUVD-2026-56383","description":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-08-11T17:04:24Z","modified":"2026-11-10T21:58:09Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:17.839385Z"}],"ghsa":[{"id":"GHSA-f437-q7vg-jqrw","title":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","description":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-08-11T18:31:21Z","modified":"2026-08-11T18:31:28Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:10:19.387522Z"}],"nvd":[{"id":"CVE-2026-62779","description":"Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-08-11T17:18:31.153Z","modified":"2026-08-13T15:54:47.857Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}